package com.tedu.bill.com.tedi.bill.demo1;

/**
 * Author：毕龙
 * Date: 2024/5/21 10:05
 */
public class TestException {
    public static void main(String[] args) {
       /* int i = 1/0;
        System.out.println(i);*/
       /* String str = null;
        System.out.println(str.charAt(0));*/
        Object o = "helo";
        Integer i = (Integer) o;
        System.out.println(i);

    }
}
